/* ============================================
   Datafacta.com — Master Stylesheet v1.0
   Cloned from TMR/Scorelogix gold standard
   AHL portfolio standard: DM Sans, light theme
   Datafacta brand: cyan/teal CTA #0891b2
   ============================================ */
:root {
  --color-ink: #0f172a;
  --color-ink-soft: #475569;
  --color-bg-white: #FFFFFF;
  --color-bg-light: #F0F4F8;
  --color-bg-dark: #0f172a;
  --color-bg-dark-mid: #1e293b;
  --color-cta: #0891b2;
  --color-cta-hover: #0e7490;
  --color-cta-pale: #cffafe;
  --color-cta-light-bg: #ecfeff;
  --color-text-heading: #0f172a;
  --color-text-body: #475569;
  --color-text-light: #94a3b8;
  --color-text-on-dark: #e2e8f0;
  --color-text-white: #FFFFFF;
  --color-border: #e2e8f0;
  --color-card-shadow: rgba(15, 23, 42, 0.08);
  --color-accent-warm: #f59e0b;
  --color-success: #16a34a;
  --color-data-magenta: #c026d3;
  --font-heading: 'DM Sans', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  --font-size-base: 16px;
  --line-height-body: 1.6;
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 64px;
  --spacing-xxl: 96px;
  --max-width: 1200px;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;
  --transition: 0.3s ease;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: var(--font-size-base); scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); color: var(--color-text-body); background-color: var(--color-bg-white); line-height: var(--line-height-body); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img { max-width: 100%; display: block; }
a { color: var(--color-cta); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-cta-hover); }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); color: var(--color-text-heading); line-height: 1.2; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); border: none; outline: none; }
input, select, textarea { font-family: var(--font-body); font-size: 1rem; }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-sm); }
.section { padding: var(--spacing-xl) 0; }
.section--white { background-color: var(--color-bg-white); }
.section--gray { background-color: var(--color-bg-light); }
.text-center { text-align: center; }

.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

.announcement-bar { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); color: #FFFFFF; text-align: center; padding: 10px var(--spacing-sm); font-size: 0.875rem; font-weight: 500; letter-spacing: 0.03em; }

.nav { position: sticky; top: 0; z-index: 1000; background-color: rgba(255,255,255,0.97); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--color-border); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; padding: var(--spacing-sm); max-width: var(--max-width); margin: 0 auto; }
.nav__logo { font-family: var(--font-heading); font-size: 1.35rem; color: var(--color-text-heading); text-decoration: none; flex-shrink: 0; display: flex; align-items: center; gap: 8px; }
.nav__logo-icon { width: 36px; height: 36px; }
.nav__logo span.logo-data { font-weight: 700; color: var(--color-ink); }
.nav__logo span.logo-facta { font-weight: 400; color: var(--color-cta); }
.nav__links { display: none; gap: var(--spacing-md); align-items: center; }
.nav__links a { color: var(--color-text-body); font-size: 0.938rem; font-weight: 500; text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; transition: color var(--transition), border-color var(--transition); }
.nav__links a:hover, .nav__links a.active { color: var(--color-cta-hover); border-bottom-color: var(--color-cta-hover); }
.nav .nav__cta { display: none; }

.btn { display: inline-block; padding: 14px 32px; border-radius: var(--border-radius-sm); font-size: 1rem; font-weight: 600; text-align: center; text-decoration: none; transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition); }
.btn--primary { background-color: var(--color-cta); color: #FFFFFF; }
.btn--primary:hover { background-color: var(--color-cta-hover); color: #FFFFFF; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(8,145,178,0.35); }
.btn--outline { background-color: transparent; color: var(--color-cta); border: 2px solid var(--color-cta); }
.btn--outline:hover { background-color: var(--color-cta); color: #FFFFFF; }
.btn--small { padding: 10px 20px; font-size: 0.875rem; }

.nav__hamburger { display: flex; flex-direction: column; gap: 5px; background: none; border: none; padding: 4px; cursor: pointer; }
.nav__hamburger span { display: block; width: 24px; height: 2px; background-color: var(--color-text-heading); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu { position: fixed; top: 0; right: -100%; width: 80%; max-width: 320px; height: 100vh; background-color: var(--color-bg-white); box-shadow: -4px 0 24px rgba(0,0,0,0.1); z-index: 999; padding: var(--spacing-xl) var(--spacing-md); transition: right var(--transition); display: flex; flex-direction: column; gap: var(--spacing-md); }
.mobile-menu.open { right: 0; }
.mobile-menu a { display: block; color: var(--color-text-heading); font-size: 1.125rem; font-weight: 500; padding: var(--spacing-sm) 0; border-bottom: 1px solid var(--color-border); text-decoration: none; }
.mobile-menu a:hover, .mobile-menu a.active { color: var(--color-cta-hover); }
.mobile-menu .btn { margin-top: var(--spacing-sm); text-align: center; }
.mobile-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.4); z-index: 998; }
.mobile-overlay.open { display: block; }

.hero { position: relative; padding: 100px 0 120px; text-align: center; background: #0f172a; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(8,145,178,0.12) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
.hero::after { content: ''; position: absolute; bottom: -30%; left: -10%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(192,38,211,0.08) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
.hero .container { position: relative; z-index: 1; }
.hero__headline { font-size: 2.25rem; font-weight: 700; line-height: 1.12; margin-bottom: var(--spacing-sm); color: #FFFFFF; max-width: 760px; margin-left: auto; margin-right: auto; }
.hero__headline em { font-style: normal; color: #67e8f9; }
.hero__subhead { font-size: 1.125rem; color: var(--color-text-on-dark); max-width: 600px; margin: 0 auto var(--spacing-lg); line-height: 1.6; }
.hero .btn { padding: 16px 40px; font-size: 1.063rem; }
.hero__badges { display: flex; justify-content: center; gap: var(--spacing-sm); margin-top: var(--spacing-lg); flex-wrap: wrap; }
.hero__badge { display: flex; align-items: center; gap: 6px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 100px; padding: 8px 16px; font-size: 0.813rem; color: var(--color-text-on-dark); font-weight: 500; }
.hero__badge i { color: #67e8f9; font-size: 0.75rem; }
.hero--home { background: linear-gradient(165deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.75) 100%); }
.hero__video { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; opacity: 0.45; }

.section-title { font-size: 2rem; font-weight: 700; text-align: center; max-width: 720px; margin: 0 auto var(--spacing-xs); color: var(--color-text-heading); line-height: 1.2; }
.section-sub { font-size: 1.063rem; color: var(--color-text-body); text-align: center; max-width: 700px; margin: 0 auto var(--spacing-lg); line-height: 1.6; }
.section-eyebrow { font-size: 0.875rem; color: var(--color-cta-hover); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; margin-bottom: var(--spacing-sm); text-align: center; }

.data-cards-grid { display: grid; grid-template-columns: 1fr; gap: var(--spacing-md); }
.data-card { background-color: var(--color-bg-white); border-radius: var(--border-radius-lg); padding: var(--spacing-md); box-shadow: 0 4px 24px var(--color-card-shadow); border: 1px solid var(--color-border); transition: transform var(--transition), box-shadow var(--transition); position: relative; overflow: hidden; display: flex; flex-direction: column; cursor: pointer; text-decoration: none; color: inherit; }
.data-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--color-cta), #67e8f9); opacity: 0.7; }
.data-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(15,23,42,0.12); border-color: var(--color-cta); color: inherit; }
.data-card__category { font-size: 0.7rem; color: var(--color-cta-hover); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700; margin-bottom: var(--spacing-xs); }
.data-card__title { font-size: 1.063rem; font-weight: 700; color: var(--color-text-heading); margin-bottom: var(--spacing-xs); line-height: 1.3; }
.data-card__current { display: flex; align-items: baseline; gap: 8px; margin-bottom: var(--spacing-xs); padding: var(--spacing-xs) 0; }
.data-card__value { font-size: 1.75rem; font-weight: 700; color: var(--color-cta-hover); font-feature-settings: "tnum"; line-height: 1; }
.data-card__unit { font-size: 0.875rem; color: var(--color-text-light); font-weight: 500; }
.data-card__hook { font-size: 0.875rem; color: var(--color-text-body); line-height: 1.5; margin-bottom: var(--spacing-sm); flex: 1; }
.data-card__sparkline { height: 50px; margin: var(--spacing-xs) 0 var(--spacing-sm); }
.data-card__footer { display: flex; align-items: center; justify-content: space-between; padding-top: var(--spacing-xs); border-top: 1px solid var(--color-border); font-size: 0.75rem; color: var(--color-text-light); }
.data-card__token-cost { display: inline-flex; align-items: center; gap: 4px; background: var(--color-cta-light-bg); color: var(--color-cta-hover); padding: 4px 10px; border-radius: 100px; font-weight: 700; font-size: 0.75rem; }
.data-card__source { font-size: 0.75rem; color: var(--color-text-light); }
.data-card.is-coming-soon { opacity: 0.65; }
.data-card.is-coming-soon::after { content: 'Coming soon'; position: absolute; top: 12px; right: 12px; background: var(--color-text-light); color: #FFFFFF; font-size: 0.65rem; font-weight: 700; text-transform: uppercase; padding: 4px 10px; border-radius: 100px; letter-spacing: 0.06em; }

.pricing-grid { display: grid; grid-template-columns: 1fr; gap: var(--spacing-md); }
.pricing-card { background-color: var(--color-bg-white); border-radius: var(--border-radius-lg); padding: var(--spacing-lg) var(--spacing-md); box-shadow: 0 4px 24px var(--color-card-shadow); border: 1px solid var(--color-border); text-align: center; transition: transform var(--transition), box-shadow var(--transition); position: relative; overflow: hidden; display: flex; flex-direction: column; }
.pricing-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--color-cta), #67e8f9); }
.pricing-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(15,23,42,0.12); }
.pricing-card.is-featured { border: 2px solid var(--color-cta); padding-top: 56px; }
.pricing-card.is-featured::before { height: 0; }
.pricing-card.is-tokenpack { border: 2px dashed var(--color-data-magenta); padding-top: 56px; }
.pricing-card.is-tokenpack::before { background: linear-gradient(90deg, var(--color-data-magenta), #f0abfc); height: 0; }
.pricing-card__featured-banner { position: absolute; top: 0; left: 0; right: 0; background: var(--color-cta); color: #FFFFFF; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 10px; }
.pricing-card__tokenpack-banner { position: absolute; top: 0; left: 0; right: 0; background: var(--color-data-magenta); color: #FFFFFF; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 10px; }
.pricing-card__title { font-size: 1.375rem; font-weight: 700; margin-bottom: var(--spacing-xs); color: var(--color-text-heading); }
.pricing-card__subtitle { font-size: 0.938rem; color: var(--color-text-body); margin-bottom: var(--spacing-md); line-height: 1.5; min-height: 3em; }
.pricing-card__price { margin: var(--spacing-xs) 0; }
.price-big { display: block; font-size: 2.75rem; font-weight: 700; color: var(--color-text-heading); line-height: 1.1; font-feature-settings: "tnum"; }
.price-big sup { font-size: 1.25rem; vertical-align: super; }
.price-decimal { font-size: 1.5rem; font-weight: 600; }
.price-period { font-size: 1rem; font-weight: 400; color: var(--color-text-light); margin-left: 4px; }
.price-note { font-size: 0.813rem; color: var(--color-text-body); margin-bottom: 4px; }
.price-regular { font-size: 0.813rem; color: var(--color-text-light); margin-bottom: var(--spacing-sm); }
.pricing-card__token-badge { display: inline-block; background: linear-gradient(135deg, var(--color-cta-light-bg), var(--color-cta-pale)); color: var(--color-cta-hover); font-size: 0.813rem; font-weight: 700; padding: 6px 14px; border-radius: 100px; margin-bottom: var(--spacing-md); letter-spacing: 0.02em; }
.pricing-card.is-tokenpack .pricing-card__token-badge { background: linear-gradient(135deg, #fae8ff, #f5d0fe); color: #86198f; }
.pricing-card .btn { width: 100%; margin-top: auto; }
.pricing__fineprint { font-size: 0.875rem; color: var(--color-text-light); text-align: center; max-width: 700px; margin: var(--spacing-lg) auto 0; line-height: 1.6; }

.how-heading { font-size: 1.75rem; font-weight: 700; text-align: center; margin-bottom: var(--spacing-lg); color: var(--color-text-heading); }
.how-steps { display: grid; grid-template-columns: 1fr; gap: var(--spacing-lg); }
.step { text-align: center; }
.step__number { display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px; background: linear-gradient(135deg, var(--color-cta), var(--color-cta-hover)); color: #FFFFFF; font-size: 1.25rem; font-weight: 700; border-radius: 50%; margin-bottom: var(--spacing-sm); box-shadow: 0 4px 12px rgba(8,145,178,0.25); }
.step__title { font-size: 1.125rem; font-weight: 600; margin-bottom: var(--spacing-xs); color: var(--color-text-heading); }
.step__text { font-size: 0.938rem; color: var(--color-text-body); max-width: 320px; margin: 0 auto; line-height: 1.6; }

.section--promise { background: linear-gradient(170deg, #0f172a 0%, #1e293b 100%); padding: var(--spacing-xxl) 0; }
.promise__heading { font-size: 1.75rem; font-weight: 700; text-align: center; margin-bottom: var(--spacing-lg); color: #FFFFFF; max-width: 720px; margin-left: auto; margin-right: auto; padding: 0 var(--spacing-sm); }
.promise__grid { display: grid; grid-template-columns: 1fr; gap: var(--spacing-md); }
.promise-block { padding: var(--spacing-md); background: rgba(255,255,255,0.04); border-radius: var(--border-radius); border: 1px solid rgba(255,255,255,0.08); transition: background var(--transition), border-color var(--transition); }
.promise-block:hover { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.15); }
.promise-block__icon { font-size: 1.25rem; color: #67e8f9; margin-bottom: var(--spacing-xs); }
.promise-block__title { font-size: 1.125rem; font-weight: 700; color: #FFFFFF; margin-bottom: var(--spacing-xs); }
.promise-block__text { font-size: 0.938rem; color: var(--color-text-on-dark); line-height: 1.6; }

.waitlist__heading { font-size: 1.75rem; font-weight: 700; text-align: center; margin-bottom: var(--spacing-xs); color: var(--color-text-heading); }
.waitlist__subhead { font-size: 1.063rem; color: var(--color-text-body); text-align: center; margin-bottom: var(--spacing-lg); max-width: 560px; margin-left: auto; margin-right: auto; }
.waitlist-form { max-width: 480px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--spacing-sm); }
.waitlist-form__group { display: flex; flex-direction: column; }
.waitlist-form__group label { font-size: 0.875rem; font-weight: 600; color: var(--color-text-heading); margin-bottom: 6px; }
.waitlist-form__group input, .waitlist-form__group select { padding: 14px 16px; border: 1px solid var(--color-border); border-radius: var(--border-radius-sm); font-size: 1rem; color: var(--color-text-heading); background-color: var(--color-bg-white); transition: border-color var(--transition), box-shadow var(--transition); -webkit-appearance: none; appearance: none; }
.waitlist-form__group select { background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%234A5568' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.waitlist-form__group input:focus, .waitlist-form__group select:focus { outline: none; border-color: var(--color-cta); box-shadow: 0 0 0 3px rgba(8,145,178,0.12); }
.waitlist-form .btn { width: 100%; padding: 16px; font-size: 1.063rem; margin-top: var(--spacing-xs); }
.waitlist-form__note { font-size: 0.813rem; color: var(--color-text-light); text-align: center; margin-top: var(--spacing-xs); }
.waitlist-form__message { text-align: center; padding: var(--spacing-sm); border-radius: var(--border-radius-sm); font-weight: 500; display: none; }
.waitlist-form__message--error { display: block; background-color: #FFF5F5; color: #C53030; border: 1px solid #FED7D7; }

.faq-section { margin-top: 0; max-width: 760px; margin-left: auto; margin-right: auto; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question { width: 100%; background: none; text-align: left; padding: var(--spacing-sm) 0; font-size: 1rem; font-weight: 600; color: var(--color-text-heading); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-question::after { content: '+'; font-size: 1.25rem; color: var(--color-text-light); transition: transform var(--transition); }
.faq-question.open::after { content: '−'; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer.open { max-height: 500px; }
.faq-answer p { padding-bottom: var(--spacing-sm); font-size: 0.938rem; color: var(--color-text-body); line-height: 1.6; }

.series-hero { padding: var(--spacing-xl) 0 var(--spacing-md); background: var(--color-bg-light); }
.series-hero__breadcrumb { font-size: 0.875rem; color: var(--color-text-light); margin-bottom: var(--spacing-sm); }
.series-hero__breadcrumb a { color: var(--color-cta); }
.series-hero__category { font-size: 0.75rem; color: var(--color-cta-hover); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; margin-bottom: var(--spacing-xs); }
.series-hero__title { font-size: 2.25rem; font-weight: 700; line-height: 1.15; margin-bottom: var(--spacing-sm); color: var(--color-text-heading); max-width: 800px; }
.series-hero__lede { font-size: 1.063rem; color: var(--color-text-body); line-height: 1.6; max-width: 720px; }
.series-hero__meta { display: flex; gap: var(--spacing-md); margin-top: var(--spacing-md); flex-wrap: wrap; font-size: 0.813rem; color: var(--color-text-light); }
.series-hero__meta-item { display: flex; align-items: center; gap: 6px; }
.series-hero__meta-item strong { color: var(--color-text-heading); font-weight: 600; }
.series-current { display: flex; align-items: baseline; gap: var(--spacing-sm); margin: var(--spacing-md) 0; }
.series-current__value { font-size: 3.5rem; font-weight: 700; color: var(--color-cta-hover); font-feature-settings: "tnum"; line-height: 1; }
.series-current__unit { font-size: 1.125rem; color: var(--color-text-light); font-weight: 500; }
.series-current__label { font-size: 0.875rem; color: var(--color-text-body); }

.series-chart-wrap { background: var(--color-bg-white); padding: var(--spacing-md); border-radius: var(--border-radius-lg); border: 1px solid var(--color-border); margin: var(--spacing-lg) 0; box-shadow: 0 1px 3px var(--color-card-shadow); }
.series-chart-wrap canvas { width: 100% !important; height: 360px !important; }

.series-article { max-width: 720px; margin: var(--spacing-lg) auto; }
.series-article h2 { font-size: 1.5rem; margin: var(--spacing-lg) 0 var(--spacing-sm); color: var(--color-text-heading); }
.series-article p { font-size: 1rem; line-height: 1.75; margin-bottom: var(--spacing-sm); color: var(--color-text-body); }
.series-article ul { list-style: disc; padding-left: var(--spacing-md); margin-bottom: var(--spacing-sm); color: var(--color-text-body); }
.series-article ul li { margin-bottom: 6px; }

.series-data-preview { background: var(--color-bg-white); padding: var(--spacing-md); border-radius: var(--border-radius-lg); border: 1px solid var(--color-border); margin: var(--spacing-lg) 0; }
.series-data-preview h3 { font-size: 1.125rem; margin-bottom: var(--spacing-sm); color: var(--color-text-heading); }
.series-data-preview table { width: 100%; border-collapse: collapse; font-size: 0.875rem; font-feature-settings: "tnum"; }
.series-data-preview th { text-align: left; padding: 8px 12px; background: var(--color-bg-light); font-weight: 700; color: var(--color-text-heading); border-bottom: 2px solid var(--color-border); }
.series-data-preview td { padding: 8px 12px; border-bottom: 1px solid var(--color-border); }
.series-data-preview tr:hover td { background: var(--color-cta-light-bg); }
.series-data-preview__footer { margin-top: var(--spacing-sm); padding-top: var(--spacing-sm); border-top: 1px solid var(--color-border); display: flex; justify-content: space-between; align-items: center; font-size: 0.813rem; color: var(--color-text-light); flex-wrap: wrap; gap: var(--spacing-xs); }
.series-data-preview__footer strong { color: var(--color-text-body); font-weight: 600; }

.series-download-cta { background: linear-gradient(135deg, var(--color-cta-light-bg), var(--color-cta-pale)); padding: var(--spacing-lg); border-radius: var(--border-radius-lg); text-align: center; margin: var(--spacing-lg) 0; border: 1px solid var(--color-cta-pale); }
.series-download-cta h3 { font-size: 1.375rem; color: var(--color-text-heading); margin-bottom: var(--spacing-xs); }
.series-download-cta p { color: var(--color-text-body); margin-bottom: var(--spacing-md); max-width: 480px; margin-left: auto; margin-right: auto; }

.series-source { background: var(--color-bg-light); padding: var(--spacing-md); border-radius: var(--border-radius); border-left: 4px solid var(--color-cta); margin: var(--spacing-lg) 0; }
.series-source__label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-light); margin-bottom: 4px; font-weight: 700; }
.series-source__name { font-size: 0.938rem; color: var(--color-text-heading); font-weight: 600; }
.series-source__url { font-size: 0.813rem; color: var(--color-cta); word-break: break-all; }

.browse-header { padding: var(--spacing-lg) 0 var(--spacing-md); background: var(--color-bg-light); }
.browse-filters { display: flex; gap: var(--spacing-xs); flex-wrap: wrap; margin: var(--spacing-md) 0; }
.browse-filter { background: var(--color-bg-white); border: 1px solid var(--color-border); padding: 8px 16px; border-radius: 100px; font-size: 0.875rem; color: var(--color-text-body); cursor: pointer; transition: all var(--transition); font-weight: 500; }
.browse-filter:hover { border-color: var(--color-cta); color: var(--color-cta-hover); }
.browse-filter.is-active { background: var(--color-cta); color: #FFFFFF; border-color: var(--color-cta); }

.footer { background-color: var(--color-bg-dark); border-top: 1px solid rgba(255,255,255,0.06); padding: var(--spacing-xl) 0 var(--spacing-md); }
.footer__grid { display: grid; grid-template-columns: 1fr; gap: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.footer__brand .nav__logo { font-size: 1.25rem; margin-bottom: var(--spacing-xs); display: inline-flex; align-items: center; gap: 8px; color: #FFFFFF; }
.footer__brand .nav__logo span.logo-data { color: #FFFFFF; font-weight: 700; }
.footer__brand .nav__logo span.logo-facta { color: #67e8f9; font-weight: 400; }
.footer__tagline { font-size: 0.875rem; color: var(--color-text-light); margin-top: var(--spacing-xs); }
.footer__links h4 { font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-light); margin-bottom: var(--spacing-sm); }
.footer__links ul { display: flex; flex-direction: column; gap: var(--spacing-xs); }
.footer__links a { font-size: 0.938rem; color: var(--color-text-on-dark); text-decoration: none; transition: color var(--transition); }
.footer__links a:hover { color: #FFFFFF; }
.footer__contact h4 { font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-light); margin-bottom: var(--spacing-sm); }
.footer__contact a { font-size: 0.938rem; color: var(--color-text-on-dark); }
.footer__copyright { font-size: 0.75rem; color: var(--color-text-light); text-align: center; padding-top: var(--spacing-md); border-top: 1px solid rgba(255,255,255,0.06); }

@media (min-width: 768px) {
  .container { padding: 0 var(--spacing-md); }
  .section { padding: var(--spacing-xxl) 0; }
  .hero { padding: 120px 0 140px; }
  .hero__headline { font-size: 3rem; }
  .hero__subhead { font-size: 1.25rem; }
  .data-cards-grid { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-md); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .how-steps { grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
  .how-heading { font-size: 2rem; }
  .promise__heading { font-size: 2rem; }
  .promise__grid { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-md); }
  .waitlist__heading { font-size: 2rem; }
  .section-title { font-size: 2.5rem; }
  .series-hero__title { font-size: 2.75rem; }
  .series-current__value { font-size: 4rem; }
  .footer__grid { grid-template-columns: 1fr 1fr 1fr; gap: var(--spacing-md); }
}

@media (min-width: 1024px) {
  .container { padding: 0 var(--spacing-lg); }
  .hero__headline { font-size: 3.5rem; max-width: 820px; }
  .hero__subhead { font-size: 1.25rem; max-width: 660px; }
  .nav__links { display: flex; }
  .nav .nav__cta { display: inline-block; }
  .nav__hamburger { display: none; }
  .data-cards-grid { grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
  .pricing-grid { grid-template-columns: repeat(4, 1fr); }
  .promise__grid { grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
  .footer__grid { grid-template-columns: 2fr 1fr 1fr; }
}

@media (min-width: 1280px) {
  .data-cards-grid { grid-template-columns: repeat(4, 1fr); }
}